The world must become independent of fossil fuels. Why? To minimize the consequences of the climate change that has already occurred. To do this, we need to develop new, clean energy sources. This is called the "energy transition". Hydrogen as a substitute for natural gas, coal and oil plays an important role in this.
What is hydrogen?
Hydrogen is a chemical element that occurs in nature, for example in combination with oxygen as water (H₂O). Hydrogen (H₂) is colorless, odorless, gaseous and is considered the oldest and most common element in the universe.
Where is it used?
It has been used for many years in a number of mostly industrial applications. The largest quantities are used in the chemical industry and oil refineries, as well as in iron and steel production. The advantage of hydrogen is that, compared to other fuels, it does not produce any exhaust gases.
Types of production
There are different ways of producing hydrogen. The types are differently good or bad for our environment. We need a lot of green hydrogen for our climate-friendly future.
Green hydrogen
Electricity is used to split the water into hydrogen and oxygen. The electricity required for this comes exclusively from renewable energy. This means that the entire production of green hydrogen is CO₂-free. Another, but much rarer method of producing green hydrogen would be the gasification and fermentation of biomass. Green hydrogen is the most sustainable.
Gray hydrogen
"Grey hydrogen" is produced using fossil fuels, but this is not so good for the environment. Natural gas is usually converted into CO₂ and hydrogen using heat. This is the most environmentally damaging form of production.
Blue hydrogen
Like gray hydrogen, "blue hydrogen" is obtained from natural gas. However, the aim here is to store the harmful gases so that they are not released into the air.
Turquoise hydrogen
This is produced in the same way as gray hydrogen. In addition, the carbon is stored safely and can even be reused. This prevents harmful gases from being released into the air.
Welcome to Saving energy at school. Here you will find detailed information on the topics from our Metaverse room.
The Metaverse room consists of 7 rooms:
- Entrance
- Energy
- Energy saving
- Future
- Auditorium
- Cinema
- Tasks
In the rooms you will find various articles that you can open on the Internet by clicking on "View".
Start your puzzle rally in the task room. You can also download the game instructions here.
Travel through three different levels and solve all the tasks. Each answer has a code number that you need to unlock the final quiz. Enter all the code numbers in your game instructions!
Once you have completed all the tasks, travel through the final quiz portal in the task room and enter your solution password there to check whether you have solved all the tasks correctly.
Your certificate is waiting for you! Have fun!
